Good night people in the community. I explain my problem, I have a web application made with JPA2.0 using EclipseLink2.0 (with jars: EclipseLink and javaxpersistence), when generating the war and raise it in an apache-tomcat my application works without problems, but when deploying the same war in jboss 5.1 EAP I get the following error:

2012-03-25 17:35:25,288 INFO  [org.jboss.web.tomcat.service.deployers.TomcatDeployment] (main) deploy, ctxPath=/

2012-03-25 17:35:25,410 INFO  [org.jboss.jpa.deployment.PersistenceUnitDeployment] (main) Starting persistence unit persistence.unit:unitName=Ventas.war#Ventas

2012-03-25 17:35:25,487 ERROR [org.jboss.kernel.plugins.dependency.AbstractKernelController] (main) Error installing to Start: name=persistence.unit:unitName=Ventas.war#Ventas state=Create

java.lang.RuntimeException: Specification violation [EJB3 JPA 6.2.1.2] - You have not defined a non-jta-data-source for a RESOURCE_LOCAL enabled persistence context named: Ventas

My persistence.xml is as follows:

<?xml version="1.0" encoding="UTF-8"?>

<persistence xmlns="http://java.sun.com/xml/ns/persistence"

             xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

             xsi:schemaLocation="http://java.sun.com/xml/ns/persistence

             http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd"

             version="1.0">

     <persistence-unit name="Ventas" transaction-type="RESOURCE_LOCAL">

  <class>modelo.Cliente</class>

  <class>modelo.Detallefactura</class>

  <class>modelo.Factura</class>

  <class>modelo.Producto</class>

  <properties>

  <property name="javax.persistence.jdbc.url" value="jdbc:mysql://localhost:3306/ventasdb"/>

  <property name="javax.persistence.jdbc.user" value="root"/>

  <property name="javax.persistence.jdbc.driver" value="com.mysql.jdbc.Driver"/>

  <property name="javax.persistence.jdbc.password" value="root"/>

  </properties>

  </persistence-unit>

</persistence>

Looking found that I must define my datasource for my connection to my database: MySQL5.0, in addition to change my persistence.xml to include a JTA. Copy to the folder: default / deploy-ds.xml file Sales is my datasource (configured with my database mysql5.0) whose JNDI VentasDatasource

<?xml version="1.0" encoding="UTF-8"?>

<persistence xmlns="http://java.sun.com/xml/ns/persistence"

             xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

             xsi:schemaLocation="http://java.sun.com/xml/ns/persistence

             http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd"

             version="1.0">

              <persistence-unit name="Ventas" transaction-type="JTA">

             <provider>org.eclipse.persistence.jpa.PersistenceProvider</provider>

         <jta-data-source>java:/VentasDatasource</jta-data-source>

                    <class>modelo.Cliente</class>

                    <class>modelo.Detallefactura</class>

                    <class>modelo.Factura</class>

                    <class>modelo.Producto</class>

                    <properties>

                              <property name="javax.persistence.jdbc.url" value="jdbc:mysql://localhost:3306/ventasdb"/>

                              <property name="javax.persistence.jdbc.user" value="root"/>

                              <property name="javax.persistence.jdbc.driver" value="com.mysql.jdbc.Driver"/>

                              <property name="javax.persistence.jdbc.password" value="root"/>

                    </properties>

          </persistence-unit>

</persistence>

However, I generated the following error in the JBoss EAP5.1

2012-03-25 23:18:11,505 INFO  [org.jboss.web.tomcat.service.deployers.TomcatDeployment] (HDScanner) undeploy, ctxPath=/Ventas

2012-03-25 23:18:29,918 INFO  [org.jboss.jpa.deployment.PersistenceUnitDeployment] (HDScanner) Starting persistence unit persistence.unit:unitName=Ventas.war#Ventas

2012-03-25 23:18:29,934 ERROR [org.jboss.kernel.plugins.dependency.AbstractKernelController] (HDScanner) Error installing to Start: name=persistence.unit:unitName=Ventas.war#Ventas state=Create

java.lang.ClassCastException: org.eclipse.persistence.jpa.PersistenceProvider cannot be cast to javax.persistence.spi.PersistenceProvider

Thanks for your response